| /* SPDX-License-Identifier: GPL-2.0 */ |
| /* |
| * Copyright (C) 1999 Cort Dougan <cort@cs.nmt.edu> |
| */ |
| #ifndef _ASM_POWERPC_DEBUG_H |
| #define _ASM_POWERPC_DEBUG_H |
| |
| #include <asm/hw_breakpoint.h> |
| |
| struct pt_regs; |
| |
| #if defined(CONFIG_DEBUGGER) || defined(CONFIG_KEXEC_CORE) |
| |
| extern int (*__debugger)(struct pt_regs *regs); |
| extern int (*__debugger_ipi)(struct pt_regs *regs); |
| extern int (*__debugger_bpt)(struct pt_regs *regs); |
| extern int (*__debugger_sstep)(struct pt_regs *regs); |
| extern int (*__debugger_iabr_match)(struct pt_regs *regs); |
| extern int (*__debugger_break_match)(struct pt_regs *regs); |
| extern int (*__debugger_fault_handler)(struct pt_regs *regs); |
| |
| #define DEBUGGER_BOILERPLATE(__NAME) \ |
| static inline int __NAME(struct pt_regs *regs) \ |
| { \ |
| if (unlikely(__ ## __NAME)) \ |
| return __ ## __NAME(regs); \ |
| return 0; \ |
| } |
| |
| DEBUGGER_BOILERPLATE(debugger) |
| DEBUGGER_BOILERPLATE(debugger_ipi) |
| DEBUGGER_BOILERPLATE(debugger_bpt) |
| DEBUGGER_BOILERPLATE(debugger_sstep) |
| DEBUGGER_BOILERPLATE(debugger_iabr_match) |
| DEBUGGER_BOILERPLATE(debugger_break_match) |
| DEBUGGER_BOILERPLATE(debugger_fault_handler) |
| |
| #else |
| static inline int debugger(struct pt_regs *regs) { return 0; } |
| static inline int debugger_ipi(struct pt_regs *regs) { return 0; } |
| static inline int debugger_bpt(struct pt_regs *regs) { return 0; } |
| static inline int debugger_sstep(struct pt_regs *regs) { return 0; } |
| static inline int debugger_iabr_match(struct pt_regs *regs) { return 0; } |
| static inline int debugger_break_match(struct pt_regs *regs) { return 0; } |
| static inline int debugger_fault_handler(struct pt_regs *regs) { return 0; } |
| #endif |
| |
| void set_breakpoint(struct arch_hw_breakpoint *brk); |
| void __set_breakpoint(struct arch_hw_breakpoint *brk); |
| bool ppc_breakpoint_available(void); |
| #ifdef CONFIG_PPC_ADV_DEBUG_REGS |
| extern void do_send_trap(struct pt_regs *regs, unsigned long address, |
| unsigned long error_code, int brkpt); |
| #else |
| |
| extern void do_break(struct pt_regs *regs, unsigned long address, |
| unsigned long error_code); |
| #endif |
| |
| #endif /* _ASM_POWERPC_DEBUG_H */ |
